Can you give any examples where we use fractional distillation techique?

Give two examples where fractional distillation is used to separate the components of a mixture

Under what conditions do we use fractional distillation ?

Write the boiling points of oxygen and nitrogen when we use fraction distillation method to separate them from liquified air.

Can you give some more examples where speed and direction simultaneously change ?

Give two examples where we use wedges as simple machines.

Give two examples where we use wedges as simple machines.